Zainabidinov, S. Z.; Turgunov, N.; Boboev, A. Y.; Akbarov, S. K.; Turmanova, R. M.; Arikov, A.; Kuchkarova, M. O.; Tolanova, B.; Rasulova, M. B. Effect of Impurity Clusters on Optical Properties of Nickel and Copper Doped Single-Crystal Silicon. East Eur. J. Phys. 2026, 203-207.